Local Calling Guide

Switch search

Search by CLLI code
  • Enter full or partial CLLI code to see all matching switches.

Switch: OTTMIATC

Switch (link to prefixes) Switch name Company
OTTMIATC0MD   2842 LOCAL TELEPHONE DATA SERVICES CORP. 
OTTMIATCDS0 OTTUMWA  9631 QWEST CORPORATION 

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.